Jia Si

Jia Si (?-?) was an officer of Wei.

Biography
While defending Mt. Qi, Jia Si was surrounded by Zhuge Liang during his Northern Campaign. He was seriously injured and had to take up position within his camp after Sima Yi had rushed to his aid but was repelled. When Zhuge Liang was forced to withdraw after he ran out of provisions, Jia Si was finally able to meet up with Sima Yi.